/**
 * @see <a href='https://www.cnkirito.moe/future-and-promise/'>JAVA 拾遗 --Future 模式与 Promise 模式</a>
 * @see <a href='https://ylzheng.com/2018/03/21/java-concurrency-and-asynchronous/'>Java回炉重造之 - 并发与异步编程[图文]</a>
 * @see java.util.concurrent.Future
 * @see java.util.concurrent.CompletableFuture
 * @see java.util.concurrent.CountDownLatch
 * @see java.util.concurrent.CyclicBarrier
 */
package com.sufanx.example.javase.async;